262 DANGEROUS ROADS. 



horse-fly. Tsetse-flies have also been observed quite close 

 to Mombasa (Koch, Beiseherichte, p. 70), 



" In the Hinterland of Dar-es-Salam the low ground 

 bordering the Gerengere River is under suspicion ; 

 Veterinary-Surgeon Schmidt himself observed the fly 

 between Mt. Kikundi and the Uluguru Mountains 

 (January 1901). The whole of the road as far as 

 Mpwapwa is for the present suspected, while further on 

 as far as Tabora it appears to be free from Tsetse-flies. 

 On the other hand cases of infection have been observed 

 on the Tabora-Ujiji road, probably on the upper Mlagarasi 

 brook. The road from Iringa to Kilossa is very risky, 

 and especially on the Great Ruaha River (called Mpagali 

 from Tayeta to beyond the point where the Lukose 

 debouches into it) is it impossible to keep any cattle. 

 Similarly no cattle can be kept in Marore. The Tsetse 

 belt begins probably at the Great Ruaha and extends as 

 far as Kirengawana. In the same way the road from 

 Iringa, by Dwangire-Ngahoma, to Kungulio is risky. 

 Inland from Kilwa the Tsetse-fly has definitely been 

 shown to occur on the Donde road between the 29th and 

 52nd kilometres (Knochenhauer), and also near Gerengere 

 village ( Veterinary-Surgeon Schmidt). For this reason the 

 choice of this place as agricultural experiment station for 

 the commune of Kilwa is not a happy one. On the road 

 from Dar-es-Salam to Songea two mules were attacked by 

 Surra, as also were cattle on the journey from Songea 

 to Lukuledi. At that time (July 1899), according to 

 reports received from Lukuledi Mission, the Tsetse-fly 

 was observed at the camping-places, Kokoma, Chamba, 

 Darhammam, and Chitwanga, and especially in Chamba. 

 In the latter place it has been experimentally proved by 

 the Songea Station that cattle kept for only two days 

 become infected by Surra. 



" The great cattle-breeding countries of the inter- 

 lacustrine region, Ugogo, Unyamwesi, the region devoid 

 of watercourses, Masailand, and so forth appear to be free 

 from Surra. 



"Nevertheless, it appears from the facts ascertained 

 up till now, that on account of the risk of infection the 

 transporting of loads by means of draught animals is only 

 possible in certain places in the colony, and that, there- 



